CVE-2022-21921: Microsoft Windows 10

Medium severity, CVSS 4.4. EPSS: 0.9% chance of exploitation in the next 30 days.

Windows Defender Credential Guard Security Feature Bypass Vulnerability

Affected products

• Microsoft Windows 10: version 20h2 only; version 21h1 only; version 21h2 only
• Microsoft Windows 11: affected versions not specified
• Microsoft Windows Server: version 20h2 only; version 2022 only

Published 2022-01-11. Last modified 2026-06-17.